Game concept

Unallocated Treasury Budget

The game also links it as Unallocated.

From the game's encyclopedia

Any unallocated treasury budget will contribute to general Treasury income.

The game's text for patch 1.20.1.2. Words in blue are entries of the encyclopedia: hover one to read it, as in the game.

Unallocated Treasury Budget is an entry of Crusader Kings III's in-game encyclopedia. The game explains it: "Any unallocated treasury budget will contribute to general Treasury income." It is part of Treasury Budgeting. The game also links it as Unallocated. Patch 1.20.1.2, from game/common/game_concepts/tgp_game_concepts.txt and game/localization/english/game_concepts_l_english.yml.

for a guide, post or blog

Source: game/common/game_concepts/tgp_game_concepts.txt, game/localization/english/game_concepts_l_english.yml and the English localisation, Crusader Kings III 1.20.1.2.